Improvement in soldering-irons



N. PETERS. PHOTO-LITHOGRAPHER wASHlNGTON D C as stopping the eud of the reservoir.

tant @anni Wee L;

J. DANA WYMAN, OF FITGHBURG, MASSACHUSETTS.

Letters Patent No. 87,897 ,dated Ma/rch 16, 1869.

To all 'album it may conce/m Be it known that I, J. DANA WYMAN, of Fitchburg,

.Worcester county, State of Massachusetts, have invented certain new and useful Improvements in Self-v Heating Soldering-Irons; and I do hereby declare. that the following is a full and clear description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

In the drawings- Figure l is a side view, and

Figure 2, a partial sectional view of the same;

Figure 3 being a detailed View of a part.

In this invention, which relates to the self-heating soldering-iron, patented by Theodore Beardsley, Feb ruary 25, 1867, and assigned to himself and J. DANA WYMAN, aforesaid, I obviate several diiiiculties attending the construction of the said patented soldering-iron.

The iiist objection in this was, that the tube A, iig 1, connecting the reservoir with the burner, became so heated, that while it did not render the handle unbearable, itrendered the oil so thin, from the heat, that it was consumed much too rapidly, from its 'iiowing so much more readily, and consequently feeding the wick at the burner faster.-

In orderto obviate this, I placca non-conducting packing, 1, of wood, or otherconvenient substance. around the tube- A, between the end of the reservoir, or handle B, and the inside end of the cap C, which screws on the end of the reservoir B, and holds the tube in place, as Well This packing is made cylindrical, land lls in between the capand the reservoir, around the tube, so that there is no contiguity of metal between them, the end of the cap, where the tube passes through, not tting closely to the latter, but only having suiiicient shoulder, a, to press the packing firmly against the reservoir, when screwed on in place.

In order to make a firm connection of thetube and reservoir, by means of the packing, the latter input on in a peculiar manner, which I will now explain;

The tube A isconstructed with a shoulder, b, on it, at the proper distance from the end of it, and on each side of this shoulder the rings of packing, o and d, are pnt, and when they are pressed toward the end of the reservoir,by the screwing down ofthe cap, instead of Asliding upon the tube, they press itin place rmly, by means of the shoulder b being clamped rigidly between them.

'The wick-regulator, shown in the afore-mentioned patent, I much improve upon, by placing a cylindrical sleeve, D, around the tube A, near the end; and 1n orderto 'dampen the dame, it is only necessary to slidey this sleeve, D, a little past the end of the tube A, forming the burner, and so reduce the height, or projection of the wick, necessarily diminishing the dame.-

The sleeve D is roughened on the outside, at f, in order to give a better hold in movingit. v v

In order to keep up a steady ameinside the heater E, whenthc iron is turned point downward, which is the most convenient position when not actually in use, and it is still required to be ready, it is necessary that the point F, of copper, should also have holes for the fresh air to feed the dame. Formerly these holes were made in the cylinder'E alone, it being necessary to hold the soldering-iron point upward, in order to keep up the ame.` I therefore place holes, g' y, 85e., in-the copper point, leading toward the flame, so that when the iron-is turned point downward, there is a direct draught under the dame, and this completely obviates all diiclties in-this respect. v l

Now, having described my invention,

What I claim as new, and desire to secure by Let ters Patent, is l In combination with a soldering-iron, the non-conducting packing I, as shown and described.

` J. DANA WYMAN.

Witnesses:

` EDWARD H. HYDE,

R. F. HYDE. 

